Industrial chemicals · Taylor, TXCertificate of Analysis
Sample Certificate of Analysis
Phosphoric Acid 75% USP Food Grade
USP Food Grade · 75%
Sample COA. Contact Alliance Chemical with your lot number to request a lot-specific COA.
- CAS number
- 7664-38-2
- Structure
Structure · PubChem - Grade
- USP Food Grade · 75%
- Assay specification
- 74.5 - 75.5 %
- Answer summary
Sample specification reference for Phosphoric Acid 75% USP Food Grade. Source-record results are reference values, not measurements for your lot.
Last reviewed 2026-07-17 by Andre Taki, Chief Commercial Officer, DOT Hazmat–certified (49 CFR 172.704).
Specifications
| Parameter | Specification | Source reference result | Test Method |
|---|---|---|---|
| Assay (H3PO4) | 74.5 - 75.5 % | 75.07 % | acidimetry |
| Arsenic (As) | Not more than 3 mg/kg | 0.061 mg/kg | — |
| Cadmium (Cd) | Not more than 3 mg/kg | 0.035 mg/kg | — |
| Chlorides (Cl) | 10 ppm Cl maximum | 1.6 ppm | — |
| Color (maximum) | 10 APHA Units max | 5 | — |
| Fluoride (F) | Not more than 10 mg/kg | 1.9 mg/kg | — |
| Iron (Fe) | 10 ppm Fe maximum | 1.8 ppm | — |
| Lead (Pb) | Not more than 3 mg/kg | 0.041 mg/kg | — |
| Identification (phosphate) | A 1:10 aqueous solution gives positive tests for Phosphate | Passes test | — |
| Sulfate (SO4) | 100 ppm SO4 maximum | 13 ppm | — |
| Mercury (Hg) | Not more than 1 mg/kg | 0.022 mg/kg | Cold-vapour AAS (EPA 245.1) |
| Specific gravity (20 °C) | 1.574 - 1.584 | 1.580 | — |
| Composition | 75 % phosphoric acid in deionized water, by weight | Conforms | By formulation; confirmed by specific gravity |
Specification limits and source-record results are reproduced from the current product reference used by the TDS. This sample is not an issued certificate and does not identify a tested lot. Contact Alliance Chemical with the product and lot number for lot-specific documentation.
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